Basic Electrical Circuits

By Prof. Gajendranath Chowdary   |   IIT Hyderabad
Learners enrolled: 7743
Electrical circuits are everywhere, from tiny ones in integrated circuits in mobile phones and music players, to giant ones that carry power to our homes. This course deals with analysis techniques that can be applied to all such circuits. We'll first discuss electrical quantities-voltage and current-relevant to such circuits and learn about basic elements(R, L, C, controlled sources) and their properties. We'll then move on to general analysis techniques that can be applied to arbitrary circuits. We'll also discuss circuit theorems and rudiments of negative feedback circuit using the opamp. After taking this course, one should be able to analyze memoryless linear circuits.

INTENDED AUDIENCE :  Interested learners
PREREQUISITES : XII std. level algebra and calculus, electrostatics

NOTE: This course videos are created and offered earlier by Prof. Nagendra Krishnapura, it will be offfered by Prof. Gajendranath Chowdary for the subsequent runs.
Course Status : Completed
Course Type : Core
Duration : 12 weeks
Start Date : 26 Jul 2021
End Date : 15 Oct 2021
Exam Date : 23 Oct 2021 IST
Enrollment Ends : 09 Aug 2021
Category :
  • Electrical, Electronics and Communications Engineering
  • Control and Instrumentation
  • Power Systems and Power Electronics
  • VLSI design
Credit Points : 3
Level : Undergraduate

Page Visits

Course layout

Week 1 : Preliminaries; Current and voltage; Electrical elements and circuits; Kirchhoff's laws,Basic elements: Voltage and current sources, R, L, C, M; Linearity of elements
Week 2 : Elements in series and parallel,Controlled sources 
Week 3 : Power and energy in electrical elements, Circuit Analysis Methods
Week 4 : Nodal analysis, Extending nodal analysis with different sources 
Week 5 : Mesh analysis, Circuit theorems
Week 6 : More circuit theorems, Two port parameters
Week 7 : Two port parameters continued, Reciprocity in resistive networks
Week 8 : Opamp and negative feedback, Opamps cont'd: Example circuits and additional topics
Week 9 : First Order Circuits, First Order Circuits cont'd
Week 10 : First order circuits with time-varying inputs, Sinusoidal steady state response and total response
Week 11 : Second order system-Natural response, Second order system-Cont'd
Week 12 : Direct calculation of steady state response from equivalent components, Magnitude and Phase plots; Maximum power transfer theorem

Books and references


Instructor bio

Prof. Gajendranath Chowdary

IIT Hyderabad
Dr. Gajendranath Chowdary is a faculty in the department of EE, IIT Hyderabad. He received the B.E. degree from Osmania University Hyderabad, India, in 2006. 
He obtained the M.Tech and Ph.D. from the Indian Institute of Technology, Delhi, India, in 2008 and 2016 respectively. He worked as an analog circuit design engineer for mobile handsets with ST-Ericsson from 2008 to 2010 and with Aura Semiconductor during 2011, 2013, and 2016. His research interests include analog and mixed-signal circuit design for ultra-low-power applications. 

Course certificate

The course is free to enroll and learn from. But if you want a certificate, you have to register and write the proctored exam conducted by us in person at any of the designated exam centres.
The exam is optional for a fee of Rs 1000/- (Rupees one thousand only).
Date and Time of Exams: 23 October 2021 Morning session 9am to 12 noon; Afternoon Session 2pm to 5pm.
Registration url: Announcements will be made when the registration form is open for registrations.
The online registration form has to be filled and the certification exam fee needs to be paid. More details will be made available when the exam registration form is published. If there are any changes, it will be mentioned then.
Please check the form for more details on the cities where the exams will be held, the conditions you agree to when you fill the form etc.


Average assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
Exam score = 75% of the proctored certification exam score out of 100

Final score = Average assignment score + Exam score

YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF AVERAGE ASSIGNMENT SCORE >=10/25 AND EXAM SCORE >= 30/75. If one of the 2 criteria is not met, you will not get the certificate even if the Final score >= 40/100.

Certificate will have your name, photograph and the score in the final exam with the breakup.It will have the logos of NPTEL and IIT Madras .It will be e-verifiable at nptel.ac.in/noc.

Only the e-certificate will be made available. Hard copies will not be dispatched.

Once again, thanks for your interest in our online courses and certification. Happy learning.

- NPTEL team

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